21928803

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^2$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 32396112

約数和(自身を除く): 10467309

約数列:

[1, 3, 13, 39, 53, 103, 159, 309, 689, 1339, 2067, 4017, 5459, 10609, 16377, 31827, 70967, 137917, 212901, 413751, 562277, 1686831, 7309601, 21928803]

約数ペア:

[(1, 21928803), (3, 7309601), (13, 1686831), (39, 562277), (53, 413751), (103, 212901), (159, 137917), (309, 70967), (689, 31827), (1339, 16377), (2067, 10609), (4017, 5459)]